Figure 2 SuperArray gene analysis of (A) CCL19, (B) CCL21, and (C) CXCL12 gene expression in upper and lower lobe surgical lung biopsies from UIP (n  =  7), NSIP (n  =  6), RBILD (n  =  6), and normal margin (n  =  5) tumour patient groups. The data shown are mean (SEM). No significant differences were detected. CCL, CC chemokine receptor ligand; CXCL, CX chemokine receptor ligand; GAPDH, glyceraldehyde 3‐phosphate dehydrogenase; NSIP, non‐specific interstitial pneumonia; RBILD, respiratory bronchiolitis/interstitial lung disease; UIP, usual interstitial pneumonia.